Improvement in steam-geneeators



gleiten y tatrs datent @fitte Letters .Patent No. 79,172, dated June 23,1868. f s

IMPROVEMENT IN STEAM-GENERATORS. i

dige Stintino filata in Via ilpsc Enters zxtart mit mating :pant nf tigesans.

TO ALL WHOM I'I MAY CONCERN:

Be it known that I, ROBERT WILBE, of the city of Philadelphia, in thcState of Pennsylvania, havel invented a new and useful Improvement inSteam-Boilers or Generators; and I do hcrcbydeclare that the followingis a full, clear, and exact description of the construction andoperation of the same, reference being ha-d to the accompanyingdrawings, making a part of this specification', in which- Figu're 1 is atransverse section of a connected pair of the said improved boilers orstcam-generators, 0n the dotted line v 'zu of tig.' 2, and i Figure 2 alongitudinal section of the same, on the dotted line fr y of fig. 1

Like letters of reference indicating the same parts when in bothfigures.

My improvement relatesfto those flattened steam-boilers or generatorswhich have theupper and lower sides of their shells stayed to each otherby close vertical longitudinal partition-plates of iron, so as to dividetheir respective interiors into several long, distinct; uncommunicatingsteam-generating chambers.

And my invention 'consists in perforating the said partition-plateswithmhumerous holes, as hereinafter described, for the purpose ofallowing the contained water. andsteam free communicationiwith all thedifferent divisions. l l A My invention also consists in the applicationtosteam-boilers or generators, having the perforated verticallongitudinal partition-plates described, of vertical transversepartition-plates across the divisions produced `by the said longitudinalpartition-plates, substantially as hereinafter described, for thepurposeof preventing any injurious surging of the contained water of theboiler or generator, when the same is subjected to a longitudinal orpitching motion, as in a steamer or other carrier. i p

My invention also'consists in the application to said'boilers,.arrangcdwith one directly above another, as hereinafter described, of verticaloverflow-pipes, for the purpose of aifording an open communication and.equality of pressure in the said different boilers, and also for thepurpose of allowing the water to be fed to the lower boiler, byoverflows from the upper one, substantially in themanner hereinafterdescribed.

And, nally, myinvention also consists, in combination with said boilers,arranged with one directly above another, and connected together bymeans of the said vertical overliow-pipcs, in the employment of a iloatin the lower boiler, in connection with a feeding-cylinder on theupper'boiler, arranged to operato togetherin ,the manner hereinafterdescribed,'for`the purpose of feeding the said 4boilers automatically.

Referring to the drawings, A A and B B areV sections of two of theimproved boilers, arranged with one above the other, and leaving asuitable return-line space, F, between them, a a and b Zz' being theupper and the lower portions ofthe respective shells of the saidboilers, a a and b b the respective perforated longitudinalpartition-plates, and a"A a" 'and b" 6" the respective transversepartition-plates; 4 C, the rotary feeding-cylinder within a suitablecase, D; E, the watersupply pipe; GG, the overllow-pipes, and I, thefloat` in the lower boiler B B. i

The exterior shells of the boilers A and B consist of a series ofplates, of boiler-iron, bent and riveted together' so as to producealong, flattened boiler, with convex ends, tied together by theperforated vertical longitudinal partition-plates a b, so as to producea series of long, distinct chambers, communicating with each otherthrough the said perforations in the partitions a substantially asrepresented in thc drawings. Each of the said chambers is divided, bythevertica'l transverse partition-platos a" bf, into separatecompartments, the said partition-plates a. being only about half theheight of the respective boilers in which they are fixed, substantiallyas represented in the drawings. j

The said boilers A and B are arranged sothat theonc, A, will be directlyabove 'the other, B, leaving a return-flue, F, between them, and areconnected together by means ofthe open overlow-pipcsG G.

These pipes G G arc each secured in a vertical position through thcrespective shells of the boilers A and B, the lower 4end of each pipeopening fully into the lowcr` boiler, B, without projecting downwardAinto the same, and thc upper end of cach projecting upward into theupper boiler, A, and oponinginto the same at the intended water-line, orat about half thc height of the boiler A, substantially as representedin the-drawings.

i rr; will f The two boilers, A and B, are intended to be walledin" inany suitable manner, so as to aiorda irespace or furnace under the frontend of the lower boiler, B, with a direct flue extending back therefrom,and

up behind the rear end of the said boiler into the return-duo I, betweenthe two boilers Aand B, the latter ilue continuing upward in front andback over the upper surface of boiler A, to the' usual escape-due or'chimney, the exposed parts of the overflow-pipes G` G, and uppersurfaces of the boilers A and B being, ot course, protected from anyinjurious action of the dames by a covering of fire-brick or anysuitable bad conductor of heat.

The lloat I is a large, hollow, air-tightsphere of thin metal, which hasa rigid stem, i', that will slide easily vthrough any suitablepackingfbox, z', xed on the upper side of the lower boiler, B, so as toallow the said ball to float, or rise and fall with the' surface of thewater contained in the said boiler. y

The feeding-cylinder Cv is a hollow vessel, having an opening, c',through one of its sides, and is fixed concentrically upon a shaft, c,so that it can be rotated thereby in a corresponding case, D, which isfixed upon the upprside ofthe upper boiler, A, substantially as shown inthe drawings.

The lower side ot` the said case D communicates with the boiler A,through an opening, d', in both, audits upper side communicates with thcwater-supply pipe E, through a like opening, and which corresponds 'withthe opening c in the rotary cylinder C. Between the outer side of thecylinder C and the inner side ofv its containing-case D, there isapplied a suitable packing, 0', for the purpose of producing asteam-tight joint between them. The cylinder-shaft c extends forward toa short distance over the front end of the boiler A, and has thereat afast pulley, H, and a loose pulley,-H', wherehy alternate rotary motionand rest can be given y to the cylinder C, by means of a suitable bandoperated by any independent motive-power, not necessary to be shown'iuthevdrawiugs.

Attached to the lower boiler, B, there isn bent lever, k, which has itsfulcrum at lc', and its power-end jointed to the projecting upper endot' the stem e" of the float I, whilst its weight-end extends upward infront .of the upper boiler, A, and forms a loop, h, beside the pulleys HH', and through this loop h the required band" is intended to passalternately to the said pulleys H H.

/The lever K isarranged in its relation to the float I and pulleys H H',so that when the contained water of the boiler B is at its properheight, or water-line, the iloat I will hold the looph directly oppositeto the side of the loose pulley H', and thus allow the motion ofthe bandto continue without rotating the cylinder Y C, and so that when thewater shall fall any considerable distance below its proper line in theboiler, theiloat p I, falling with it, will cause the loop-end of thesaid lever Kto be brought over to the position shown in the drawings,thus shifting the band to the fast pulley H, which latter, being rotatedthereby, will give rotary motion to the feeding-cylinder C.

Asteam-boiler or generator, constructed in the iiattened form andstrengthened by staying the upper and lower portions of the shelltogether by close, vertical partition-plates, which divide it into ahorizontal series of 'separate longitudinal steam-generating apartments,as heretofore, will require less ymaterial in its construction, and bestronger than if the same number of chambers of equal capacity wereproduced by so many separate cylindrical boilers; and hence the saidattened form'of construction described has peculiar advantages overtheold separate cylindrical boilers arranged side by side; but, as therehas'not heretofore been any provision made to equalize the height of thewater in the different apartments of such ilattened boiler, it has notbeen brought into general use. 4 y

^ It will be seen that, in the operation ot my herein-describedimprovement, the said longitudinal' partition plates a or b, being eachperforated with numerous small holes, the required uniformity inthedepth ot` the o water, as well as in the pressure of the steam in thedifferent apartmeutsfwill be attained, and in the most simplemanner,.and, also, that when the boiler is subjected to atransversely-oscillating motion, as from the rolling of a sea-steamer,the surging of the contained water will be suiciently prevented withoutinterfering with or varying the required uniformity in the. pressure ofthe steam throughout all the different longitudinal apartments.ordivisionsz f It will also be seen that while the transversepartition-plates a!" or b divide each of the said longitudinal tapartments ofthe boiler into several separate apartments, eachcorresponding in height with the intended height of the'water-line ofthe boiler, as shown and described, the surging of the contained waterwhen the boiler is subjected to a longitudinally-oscillating motion, asfrom the pitching motion oi a steamer in a rough sca,- will besuiiiciently prevented by the said transverse partition-plates, and thiswithout preventing free access of any one to the different apartments,when desiredfor the purpose of repairs or cleaning. When two of the saidboilers' A and B, constructed as described, are arranged with the oneabove the other,` f witha return-liuc between, as shown in the drawings,they will be connected together, so as virtually to produce asingle'steam-gencrator, by means of the overflow-pipes G G, because thesaid pipes 4will constantly serve as means of open communication`between the upper and the lower portions ofthe said generator, and itwill, therefore, be seen that as theupper ends ot' the said pipes G Gextend upward no further than t-o the intended g vwater-line of theupper boiler A, and downward no further than to pass through the shellof the upper portion 'only of the lower boiler B, as shown in thedrawings, and being open at both ends, and the intended water-line ofthe said lower boiler B never being higher than the transversepartition-plates bm 6', the said pipes G G will always remain open, andconsequently allow the pressure ofthe steam to be at all times alike inboth A and B. It will also be seen that as the iloat I will rise andfall in accordance with the rise and fall ot the surface of the water inthe lower vboiler B-the proper water-line being about the height of thetransverse partitionplates b 17', and the oat,`levcr, and pulleys beingrelativelypadjusted for the purpose---the lever Kwill be caused toshiftthe running band (before mentioned, but not shown,) from one'to theother ofthe pulleys H H', and thus give alternate uiotiou and rest tothe feeding-cylinder C; and that said feeding-cylinder, when beingrotated, will, at "each rotation,`receive from the supply-pipeEfced-water equal to its capacity, and discharge the same into the upperboiler A and that, therefore, when the water in the lower boiler becomesreduced considerably below its proper water-line, the llo'at I,following, and consequentlyacting upon, the lever K, will shift the saidrunning band frornthc loose pulley H to the fast pulley H, and thuscause the said cylinderl C to rotate, and thereby discharge water into'the boiler A, as stated, until by overflowing and falling through the.pipes G'G, a' suilicient quantity of water reaches the lower boiler Bto raise the supface of the sauie therein to its proper waterline, and,at the same time, to 4cause the float I to -move the lever K, so as toshiltt the band from the fast pulley H to lthe loose pulley H', and thusstop the 'feeding-motion of the cylinder C. f

As the shell of a llattene'd steam-boiler or generator has before beenconstructed in' the form and manner described, andthe boiler dividedlongitudinally into separate, uncommunicating steam-generatngapartments, by means of close, vertical tieparttionsI wish it to heunderstood "that I do not consider myself to be the lrst inventor ofsuch attened, many-chambered boilers c'r generators; but having fullydescribed myimprovement,

What I claim as new of my invention, and desire to secure by LettersPatent, is confined tothe following, viz

1. I claim, in a steam-boiler or generator, the perforated dividingpartition-platesaor b, substantially as and for the purpose described. Y

2. In combination with o steam-boilercr generator, the verticaltransverse partitionrplatos af" or b, the -same being constructed andarranged substantially as and for the purpose described.

3. I claim the vertical overflow-pipes GG, constructed `and arrangedsubstantially as and for the purpose described.4

4. 4In combination with two or more steam-boilers or generators A and B,arranged with one directly above another, and connected together bymeans of the open vertical overflow-pipes G Gr, as described, theemployment of the float I in the lower boiler, and the feeding-cylinderC, with its Ycase D, on the-upper boiler, the same being connectedtogether by the lever K, pulleys H H', and any suitable moving band, andthe whole being arranged to operate together, substantially as and forthe purpose described.

' Y 'ROBERT WILDE.

- Witnesses:

BENJ; Monson, JonN WHITE.

